About the review's Objectives
Identification of the need for a review. The need for a systematic review originates from a researcher aiming to understand the state-of-the-art in an area, or from practitioners wanting to use empirical evidence in their strategic decision-making or improvement activities. If there are more or less systematic literature reviews available in the field, they should be appraised regarding scope and quality, to evaluate if they are sufficient to meet the current needs for a review. A systematic literature review may be viewed as a research method for making a literature review.
C. Wohlin, P. Runeson, M. Höst, M. C. Ohlsson, B. Regnell and A. Wesslén, "Experimentation in Software Engineering", Springer, ISBN 978-3-642-29043-5, 2012.